[ISDP] 20170518 2nd midterm 2

Question

Please design a regular expression matches a date in yyyy-mm-dd format from 1900-01-01 through 2099-12-31. You can assume that every mouth has 31 days, and you don't have to consider leap year.

Answer 1

Hidden content!
* * ***** * * * * * *** * ** * *** * ** *** * * ** * **** **

Answer 2

Hidden content!
** ** * ** * || 2]\d{1}[0 || ** * || ** ** * *** * * ** * ** ****** ** $results)

Answer 3

Hidden content!
$input =~ ***** ** * * ** * ** * * * *** ** *

Answer 4

Hidden content!
***** **** ******* * * * ** ** * * * * ** **

Answer 5

Hidden content!
*** ** * * * * **** *

Answer 6

Hidden content!
* ** * ********* * ** ** * ** ** *** **** **

Answer 7

Hidden content!
* * * * ** * *




* * *


* ***** * *
* **** * * *

if * * ** ** ***** * *** ** ** ** **
{
* * ***
* ***
** * *
}

Answer 8

Hidden content!
*** *** ***** * *** ******** **** *

Answer 9

Hidden content!
** * * ** ** ********* * *** ** * ***** * ** * **

Answer 10

Hidden content!
* *** ***** *** * ** ************ ** ** **** * ***** ** * * * * ***